gstreamer/ext/mikmod/gstmikmod.c

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstmikmod.h"
#include <stdlib.h>
/* elementfactory information */
GstElementDetails mikmod_details = {
"MikMod",
"Codec/Decoder/Audio",
"Module decoder based on libmikmod",
"Jeremy SIMON <jsimon13@yahoo.fr>",
};
/* Filter signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_SONGNAME,
ARG_MODTYPE,
ARG_MUSICVOLUME,
ARG_PANSEP,
ARG_REVERB,
ARG_SNDFXVOLUME,
ARG_VOLUME,
ARG_INTERP,
ARG_REVERSE,
ARG_SURROUND,
ARG_HQMIXER,
ARG_SOFT_MUSIC,
ARG_SOFT_SNDFX
};
MODULE *module;
MREADER *reader;
GstPad *srcpad;
GstClockTime timestamp;
int need_sync;
static GstStaticPadTemplate mikmod_src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"signed = (boolean) TRUE, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) { 8000, 11025, 22050, 44100 }, "
"channels = (int) [ 1, 2 ]; "
"audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"signed = (boolean) FALSE, "
"width = (int) 8, "
"depth = (int) 8, "
"rate = (int) { 8000, 11025, 22050, 44100 }, "
"channels = (int) [ 1, 2 ]")
);
static GstStaticPadTemplate mikmod_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-mod")
);
static void gst_mikmod_base_init (gpointer g_class);
static void gst_mikmod_class_init (GstMikModClass * klass);
static void gst_mikmod_init (GstMikMod * filter);
static void gst_mikmod_set_property (GObject * object, guint id,
const GValue * value, GParamSpec * pspec);
static void gst_mikmod_get_property (GObject * object, guint id, GValue * value,
GParamSpec * pspec);
static GstPadLinkReturn gst_mikmod_srclink (GstPad * pad, const GstCaps * caps);
static GstCaps *gst_mikmod_srcfixate (GstPad * pad, const GstCaps * caps);
static void gst_mikmod_loop (GstElement * element);
static gboolean gst_mikmod_setup (GstMikMod * mikmod);
static GstElementStateReturn gst_mikmod_change_state (GstElement * element);
static GstElementClass *parent_class = NULL;
GType
gst_mikmod_get_type (void)
{
static GType mikmod_type = 0;
if (!mikmod_type) {
static const GTypeInfo mikmod_info = {
sizeof (GstMikModClass),
gst_mikmod_base_init,
NULL,
(GClassInitFunc) gst_mikmod_class_init,
NULL,
NULL,
sizeof (GstMikMod),
0,
(GInstanceInitFunc) gst_mikmod_init,
};
mikmod_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstMikmod", &mikmod_info, 0);
}
return mikmod_type;
}
static void
gst_mikmod_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&mikmod_src_factory));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&mikmod_sink_factory));
gst_element_class_set_details (element_class, &mikmod_details);
}
static void
gst_mikmod_class_init (GstMikModClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SONGNAME,
g_param_spec_string ("songname", "songname", "songname",
NULL, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MODTYPE,
g_param_spec_string ("modtype", "modtype", "modtype",
NULL, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MUSICVOLUME,
g_param_spec_int ("musicvolume", "musivolume", "musicvolume",
0, 128, 128, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PANSEP,
g_param_spec_int ("pansep", "pansep", "pansep",
0, 128, 128, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_REVERB,
g_param_spec_int ("reverb", "reverb", "reverb",
0, 15, 0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SNDFXVOLUME,
g_param_spec_int ("sndfxvolume", "sndfxvolume", "sndfxvolume",
0, 128, 128, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VOLUME,
g_param_spec_int ("volume", "volume", "volume",
0, 128, 96, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_INTERP,
g_param_spec_boolean ("interp", "interp", "interp",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_REVERSE,
g_param_spec_boolean ("reverse", "reverse", "reverse",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SURROUND,
g_param_spec_boolean ("surround", "surround", "surround",
TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HQMIXER,
g_param_spec_boolean ("hqmixer", "hqmixer", "hqmixer",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SOFT_MUSIC,
g_param_spec_boolean ("soft_music", "soft_music", "soft_music",
TRUE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SOFT_SNDFX,
g_param_spec_boolean ("soft_sndfx", "soft_sndfx", "soft_sndfx",
TRUE, G_PARAM_READWRITE));
gobject_class->set_property = gst_mikmod_set_property;
gobject_class->get_property = gst_mikmod_get_property;
gstelement_class->change_state = gst_mikmod_change_state;
}
static void
gst_mikmod_init (GstMikMod * filter)
{
filter->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&mikmod_sink_factory), "sink");
filter->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&mikmod_src_factory), "src");
gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
gst_pad_set_link_function (filter->srcpad, gst_mikmod_srclink);
gst_pad_set_fixate_function (filter->srcpad, gst_mikmod_srcfixate);
gst_element_set_loop_function (GST_ELEMENT (filter), gst_mikmod_loop);
filter->Buffer = NULL;
filter->stereo = TRUE;
filter->surround = TRUE;
filter->_16bit = TRUE;
filter->soft_music = TRUE;
filter->soft_sndfx = TRUE;
filter->mixfreq = 44100;
filter->reverb = 0;
filter->pansep = 128;
filter->musicvolume = 128;
filter->volume = 96;
filter->sndfxvolume = 128;
filter->songname = NULL;
filter->modtype = NULL;
filter->initialized = FALSE;
}
static GstCaps *
gst_mikmod_srcfixate (GstPad * pad, const GstCaps * caps)
{
GstCaps *ret;
GstStructure *structure;
/* FIXME: select est caps here */
if (gst_caps_get_size (caps) > 1)
return NULL;
ret = gst_caps_copy (caps);
structure = gst_caps_get_structure (ret, 0);
if (gst_caps_structure_fixate_field_nearest_int (structure, "channels", 2))
return ret;
if (gst_caps_structure_fixate_field_nearest_int (structure, "rate", 44100))
return ret;
gst_caps_free (ret);
return NULL;
}
static GstPadLinkReturn
gst_mikmod_srclink (GstPad * pad, const GstCaps * caps)
{
GstMikMod *filter;
GstStructure *structure;
gint depth;
gint channels;
filter = GST_MIKMOD (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "depth", &depth);
filter->_16bit = (depth == 16);
gst_structure_get_int (structure, "channels", &channels);
filter->stereo = (channels == 2);
gst_structure_get_int (structure, "rate", &filter->mixfreq);
return gst_mikmod_setup (filter) ? GST_PAD_LINK_OK : GST_PAD_LINK_REFUSED;
}
static void
gst_mikmod_loop (GstElement * element)
{
GstMikMod *mikmod;
GstBuffer *buffer_in;
g_return_if_fail (element != NULL);
g_return_if_fail (GST_IS_MIKMOD (element));
mikmod = GST_MIKMOD (element);
srcpad = mikmod->srcpad;
mikmod->Buffer = NULL;
if (!mikmod->initialized) {
while ((buffer_in = GST_BUFFER (gst_pad_pull (mikmod->sinkpad)))) {
if (GST_IS_EVENT (buffer_in)) {
GstEvent *event = GST_EVENT (buffer_in);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS)
break;
} else {
if (mikmod->Buffer) {
GstBuffer *merge;
merge = gst_buffer_merge (mikmod->Buffer, buffer_in);
gst_buffer_unref (buffer_in);
gst_buffer_unref (mikmod->Buffer);
mikmod->Buffer = merge;
} else {
mikmod->Buffer = buffer_in;
}
}
}
if (!GST_PAD_CAPS (mikmod->srcpad)) {
if (GST_PAD_LINK_SUCCESSFUL (gst_pad_renegotiate (mikmod->srcpad))) {
GST_ELEMENT_ERROR (mikmod, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
}
MikMod_RegisterDriver (&drv_gst);
MikMod_RegisterAllLoaders ();
MikMod_Init ("");
reader = GST_READER_new (mikmod);
module = Player_LoadGeneric (reader, 64, 0);
gst_buffer_unref (mikmod->Buffer);
if (!Player_Active ())
Player_Start (module);
mikmod->initialized = TRUE;
}
if (Player_Active ()) {
timestamp = (module->sngtime / 1024.0) * GST_SECOND;
drv_gst.Update ();
} else {
gst_element_set_eos (GST_ELEMENT (mikmod));
gst_pad_push (mikmod->srcpad, GST_DATA (gst_event_new (GST_EVENT_EOS)));
}
}
static gboolean
gst_mikmod_setup (GstMikMod * mikmod)
{
md_musicvolume = mikmod->musicvolume;
md_pansep = mikmod->pansep;
md_reverb = mikmod->reverb;
md_sndfxvolume = mikmod->sndfxvolume;
md_volume = mikmod->volume;
md_mixfreq = mikmod->mixfreq;
md_mode = 0;
if (mikmod->interp)
md_mode = md_mode | DMODE_INTERP;
if (mikmod->reverse)
md_mode = md_mode | DMODE_REVERSE;
if (mikmod->surround)
md_mode = md_mode | DMODE_SURROUND;
if (mikmod->_16bit)
md_mode = md_mode | DMODE_16BITS;
if (mikmod->hqmixer)
md_mode = md_mode | DMODE_HQMIXER;
if (mikmod->soft_music)
md_mode = md_mode | DMODE_SOFT_MUSIC;
if (mikmod->soft_sndfx)
md_mode = md_mode | DMODE_SOFT_SNDFX;
if (mikmod->stereo)
md_mode = md_mode | DMODE_STEREO;
return TRUE;
}
static GstElementStateReturn
gst_mikmod_change_state (GstElement * element)
{
GstMikMod *mikmod;
g_return_val_if_fail (GST_IS_MIKMOD (element), GST_STATE_FAILURE);
mikmod = GST_MIKMOD (element);
GST_DEBUG ("state pending %d", GST_STATE_PENDING (element));
if (GST_STATE_PENDING (element) == GST_STATE_READY) {
gst_mikmod_setup (mikmod);
if (Player_Active ()) {
Player_TogglePause ();
Player_SetPosition (0);
}
mikmod->initialized = FALSE;
}
if (GST_STATE_PENDING (element) == GST_STATE_PLAYING) {
if (Player_Active () && Player_Paused ())
Player_TogglePause ();
else if (!Player_Active ())
Player_Start (module);
}
if (GST_STATE_PENDING (element) == GST_STATE_PAUSED)
if (Player_Active () && !Player_Paused ())
Player_TogglePause ();
if (GST_STATE_PENDING (element) == GST_STATE_NULL)
MikMod_Exit ();
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static void
gst_mikmod_set_property (GObject * object, guint id, const GValue * value,
GParamSpec * pspec)
{
GstMikMod *filter;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_MIKMOD (object));
filter = GST_MIKMOD (object);
switch (id) {
case ARG_SONGNAME:
g_free (filter->songname);
filter->songname = g_strdup (g_value_get_string (value));
break;
case ARG_MODTYPE:
g_free (filter->modtype);
filter->modtype = g_strdup (g_value_get_string (value));
break;
case ARG_MUSICVOLUME:
filter->musicvolume = g_value_get_int (value);
break;
case ARG_PANSEP:
filter->pansep = g_value_get_int (value);
break;
case ARG_REVERB:
filter->reverb = g_value_get_int (value);
break;
case ARG_SNDFXVOLUME:
filter->sndfxvolume = g_value_get_int (value);
break;
case ARG_VOLUME:
filter->volume = g_value_get_int (value);
break;
case ARG_INTERP:
filter->interp = g_value_get_boolean (value);
break;
case ARG_REVERSE:
filter->reverse = g_value_get_boolean (value);
break;
case ARG_SURROUND:
filter->surround = g_value_get_boolean (value);
break;
case ARG_HQMIXER:
filter->hqmixer = g_value_get_boolean (value);
break;
case ARG_SOFT_MUSIC:
filter->soft_music = g_value_get_boolean (value);
break;
case ARG_SOFT_SNDFX:
filter->soft_sndfx = g_value_get_boolean (value);
break;
default:
break;
}
}
static void
gst_mikmod_get_property (GObject * object, guint id, GValue * value,
GParamSpec * pspec)
{
GstMikMod *filter;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_MIKMOD (object));
filter = GST_MIKMOD (object);
switch (id) {
case ARG_MUSICVOLUME:
g_value_set_int (value, filter->musicvolume);
break;
case ARG_PANSEP:
g_value_set_int (value, filter->pansep);
break;
case ARG_REVERB:
g_value_set_int (value, filter->reverb);
break;
case ARG_SNDFXVOLUME:
g_value_set_int (value, filter->sndfxvolume);
break;
case ARG_VOLUME:
g_value_set_int (value, filter->volume);
break;
case ARG_INTERP:
g_value_set_boolean (value, filter->interp);
break;
case ARG_REVERSE:
g_value_set_boolean (value, filter->reverse);
break;
case ARG_SURROUND:
g_value_set_boolean (value, filter->surround);
break;
case ARG_HQMIXER:
g_value_set_boolean (value, filter->hqmixer);
break;
case ARG_SOFT_MUSIC:
g_value_set_boolean (value, filter->soft_music);
break;
case ARG_SOFT_SNDFX:
g_value_set_boolean (value, filter->soft_sndfx);
break;
default:
break;
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "mikmod", GST_RANK_SECONDARY,
GST_TYPE_MIKMOD))
return FALSE;
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"mikmod",
"Mikmod plugin library",
plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)